Back bench



FIG. 1 is a front perspective view of a back bench showing my new design;

FIG. 2 is a side perspective view thereof from the left of FIG. 1;

FIG. 3 is a rear perspective view thereof;

FIG. 4 is another front perspective view thereof taken at 90° to the view shown in FIG. 1;

FIG. 5 is a side perspective view thereof showing the side opposite that shown in FIG. 2; and,

FIG. 6 is a rear perspective view thereof taken at 90° from the view shown in FIG. 3. 

The ornamental design for a back bench, as shown. 